cooke



(No Model.)

-' 2 Sheets$heet 1; v I E. W. 000KB. A MEASURING APPARATUS FORFILLINGSTREET LAMPS. No. 411,375.

Patented Sept. 17, 1889.

M I A} Z (No Model.)

V 2 Sheets-Sheet 2. .E. W. 000KB. I MEASURING APPARATUS FOR. FILLINGSTREET LAMPS. No. 411,375.

Patented Sept. 17, 1889.

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UNITED STATES PATENT OFFICE.

ERNEST W. COOKE, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-THIRD TO.

7 CHARLES P. WARREN. V

A MEASURING APPARATUS FOR FILLING STREET-LAMPS.

SPECIFICATION forming part of Lettersfatent No. 411,375, dated September17, 1889. I

Applicatioh filed March 27,1889. Serial No. 305,030. (No model.)

measuring the charge is used in conj unction with the oil-supplyreservoir; and the objects of my improvements are, first, to provide aportable oil-supply reservoir having a chargemeasuring attachmentconnected directly therewith by a flexible connection, whereby theapparatus may be conveniently applied to charge a lamp, and, second, toprovide the charge-m easurin g attachment with means for automaticallyshutting off the flow of oil from the supply-reservoir to themeasuringchamber and simultaneously-emptying the charge into thelamp-reservoir. I have attained these objects by the apparatus andmechanism illustrated in the accompanying drawings, in which Figure 1represents a side elevation of my apparatus as applied in charging astreetlamp. Fig. 2 is a central section of the chargemeasuringattachment, enlarged, the oilchamber being closed. Fig. 3 is a like viewrepresenting the oil-chamber filled with a charge of oil. Fig. 4 is aside elevation of the charge-measuring attachment as viewed from theleft and at right angles to the plane of the section shown in Fig. 2.Fig. 5 is a side elevation of a modification of the chargemeasuringattachment, showing a diiferent arrangement of parts to that of theviews shown on the first sheet of drawings. Fig. 6 is a vertical centralsection of Fig. 5. Fig. 7 shows the charge-measuring attachment asapplied directly to an oil-barrel for measuring out the oil; also, adifferent arrangement of springs.

A designates the portable oil-supply reservoir, which is made'of therequired size to carry oil enough to fill a considerable number oflamps. It is made to close air-tight and to sustain sufficient internalair-pressure to force the oil out through the charge-measuringattachment as required in charging 11', 1889, for a patent therefor.

lamps. Such reservoir is provided with a flexible hose A, for lettingthe oil out,whereby it may, when brought sufficiently near to the lamp,be conveniently connected therewith. The nozzle a of said hose isprovided with a hook-like point or, adapted to hook into the opening aof the lamp-reservoir, as ordinarily constructed,.and hold the hose inplace during the charging process. Back from the open end of the nozzlethere is atwo-port valve 1), having a port I) b for admitting oilthrough the hose to the expanding chamber 1:- of the charge-measuringattachment, and a port b b for emptying the oil from said chamberthrough the hose-nozzle in to the lamp-reservoir, when the end 12 ofsaid port is brought to coincide with the opening to said chamber. Saidports are relatively arranged so that when the way through the hose tosaid expanding chamber is open the way from said chamber out through thenozzle will be closed, and when the way out through the nozzle is openthe way through to said hose will be closed. The shaft of said valve isprovided with'a handle 17 for opening and closing said ports.

The expanding chamber of the chargemeasuring attachment, as shown inF1gs.1 to 4, inclusive, is provided with a sliding part1- tion or diskC, having a rod 0 0 attached thereto and'arranged to operate inconnection with a graduated scale E and an adgustable stop e on asliding bar or rod F, supported on the said chamber, all substantiallyas shown and described in a separate application, Serial No. 299,496,made by me February These parts are therefore not more particularlydescribed here. The lower end of said rod F, as here shown, is pivotedto one of the arms of a bell-crank f, which is hinged to the side of theexpanding chamber. The other arm f of said bell-crank engages with anarm f of the shaft of valve b in such manner as to hold open the port I)b thereof, and there is'a spring S, connected to an arm f of saidvalve-shaft and to a projection on said chamher, which presses saidshaft in the opposite direction or pulls the arm f against the end ofarm f. When said last-mentioned arm is tripped or released from thearmf, said spring will turn the 'alve-shaft back a quarter-revolution,and thereby close the port 0 b and open 6 b.

The rod F is raised or moved by the rode a of the sliding partitioncoming against the stop 6 as said partition is pushed upward or movedout of the way by the oil coming into the expanding chamber, and thebell-crank is tripped automatically thereby when the required charge isadmitted into said chamber.

By means of the adj ustability of the stop relatively to the scale thetripping of the bell-crank may be timed so as to vary the charge of oilto correspond with the varying time which the different lamps may berequired to burn.

In the modification of the charge-measuring attachment, as shown inFigs. 5 to 7, inclusive, the graduated scale is placed down on the sideof the expanding chamber 13, and a rod 0 is connected with the slidingpartition 0 and extended up to the top of said chamber, and then overthe top and down to the trip mechanism, which, as here shown, is aspring-pressed latch g, adapted to engage with a lug g on thevalve-shaft for holding open the port I) b to admit oil into theexpanding chamber. This latch is raised by the curved end of said rod 0striking against the adjustable stop e on a screw-rod e pivotallyconnected to the upper end of said latch and threaded through said stop,so that by turning the same to the right or left said stop will bethereby moved up or down on said screw-rod to any desired point on thegraduated scale. As the bent end of the rod c comes against the stop 6said screw-rod will be raised and lift said latch out of engagement withthe 111 g on the valve-shaft and leave the same free, so that the portI) I) will be closed by the action of the spring S.

The spring or springs S may be applied in any of the ways shown in Figs.2, 5, or 7. By attaching said spring or springs to the sliding partitionand to the top of said expanding chamber, and shortening them up bybringing the coils normally close together, they may be made to liftsaid sliding partition from the bottom of said expanding chamber anddraw the oil up by suction. In such case the said springs would beextended and the oil would be forced out of said chamber by hearing downon the rod 0 c with the hand.

I contemplate forcing the oil out of the portable supply-reservoireither by suflicient air-pressure created within it at the start or byan ordinary air-pump, as G, attached to said reservoir, so that thepressure can be applied as needed by the operator.

By using alight cart, as II, the portable apparatus, together with aladderlI for getting np to the lamps, may be conveniently carried aboutfrom lamp to lamp.

The operation is as follows: On reaching a lamp to be filled and lightedthe attendant should first observe the time and adjust the stop to agreetherewith on the graduated scale, then hook the nozzle into the openinga of the lamp, then turn the valve so as to open the way through thehose to expanding chamber, and set the bell-crank, as shown in F1g. 2,to hold it open until the charge is admitted to said chamber. He canthen proceed to trim the lamp preparatory to lighting t, and light it assoon as the bell-crank is tripped. After the lighting the nozzle may beunhooked and the apparatus carried to another lamp, where theabove-described operation may be repeated. For the purpose ofhasteningthe emptying of the charge into the lamp, I arrange a spring b" betweenthe sliding partition and the top of the expanding chamber in suchmanner as to be compressed by said partition as it is raised by theincoming charge, so that when the way out through the nozzle is opensaid spring will tend to push said partition back, and thus aid inforcing the oil out.

A light spring S is arranged to hold the bell-crank normally in positionto engage the arm f of the valve'shat't automatically when said shaft isturned so as to open the way through the hose to the expanding chamber.

What I claim is- 1. An apparatus for charging street-lamps, consistingof a portable oil-supply reservoir and a charge-measuring attachmenthaving an expanding and contracting chamber, in combination with aflexible hose provided with a nozzle adapted to connect the apparatuswith the opening of lamps to be filled, and athree-way valve at itsjunctiom with said chamber for admitting oil from said reservoir theretothrough said hose and discharging the same therefrom through saidnozzle, whereby the measuring attachment of such apparatus through theflexibility of said hose is adapted to fill lamps in various positionsrelative to said apparatus within the reach of said hose, as specified.

2. In a lamp-chargin g apparatus, the combination, with an expandingcharge-measuring chamber, of a spring-pressed two-port valve, one portfor opening and closmga way through a pipe into said chamber and theother for opening and closing a way out of said chamber through theopposite end of said pipe, trip mechanism, substantially as described,for holdingopen said port into sald chamber, and a tripping-rod forconnecting such trip mechanism with the moving part of such expandingchamber for automatically tripping the same, substantially as specified.

ERNEST \V. COOKIE.

\Vitnesses:

JNo. II. WHIPPLE, Jos. W. MERRIAM.

